openGauss每日一练第5天

1.创建数据库musicdb10，创建用户user10，赋予sysadmin权限

omm@modb:~$ gsql -r
gsql ((openGauss 3.0.0 build 02c14696) compiled at 2022-04-01 18:12:00 commit 0 last mr  )
Non-SSL connection (SSL connection is recommended when requiring high-security)
Type "help" for help.

omm=# CREATE TABLESPACE music_tbs RELATIVE LOCATION 'tablespace/test_ts1';
CREATE TABLESPACE
omm=# CREATE DATABASE musicdb10  WITH TABLESPACE = music_tbs;
CREATE DATABASE
omm=# CREATE USER user10 IDENTIFIED BY 'kunpeng@1234';
NOTICE:  The encrypted password contains MD5 ciphertext, which is not secure.
CREATE ROLE
omm=# ALTER USER user10 SYSADMIN;
ALTER ROLE

2.用户user10访问数据库postgres，创建一个表并插入数据

omm=# \c postgres user10
Password for user user10: 
Non-SSL connection (SSL connection is recommended when requiring high-security)
You are now connected to database "postgres" as user "user10".
openGauss=> create table t11(col1 char(20));
CREATE TABLE
openGauss=> insert into t11 values('Hello openGauss! 11');
INSERT 0 1
openGauss=>  select * from t11;  
         col1         
----------------------
 Hello openGauss! 11 
(1 row)

3.用户user10访问数据库omm，创建一个表并插入数据

openGauss=> \c omm user10
Password for user user10: 
Non-SSL connection (SSL connection is recommended when requiring high-security)
You are now connected to database "omm" as user "user10".
omm=> 
omm=> create table t11(col1 char(20));
CREATE TABLE
omm=>  insert into t11 values('Hello openGauss! 11');
INSERT 0 1
omm=>  select * from t11;      
         col1         
----------------------
 Hello openGauss! 11 
(1 row)

4.用户user10访问数据库musicdb10，创建一个表并插入数据

omm=> \c musicdb10 user10
Password for user user10: 
Non-SSL connection (SSL connection is recommended when requiring high-security)
You are now connected to database "musicdb10" as user "user10".
musicdb10=> 
musicdb10=> create table t11(col1 char(20));
CREATE TABLE
musicdb10=>  insert into t11 values('Hello openGauss! 11');
INSERT 0 1
musicdb10=>  select * from t11; 


musicdb10=>          col1         
----------------------
 Hello openGauss! 11 
(1 row)